How do reversible cards work?

Reversible cards change from blue (dry) to pink (humid) and can return to blue by placing them in a sealed container with desiccant for 48 hours.

What is the lead time for orders?

The average lead time is within 15 workdays for both peak and off-peak seasons.

Do you offer free samples?

Yes, we provide free samples and fast delivery time for potential customers.

3 Dots Color Changeable Environmental Cobalt Free Humidity Sensitive Indicator Card

Name: 3 Dots Color Changeable Environmental Cobalt Free Humidity Sensitive Indicator Card
Brand: Foshan Shunde Topcod Industry Co., Ltd.
SKU: 798482875

Guangdong, ChinaFoshan Shunde Topcod Industry Co., Ltd.

US$0.06-0.08

5,200 Pieces

Sample price:US$0.20/bag.Request sample

Product profile

Customization

Available

CAS No.

10043-52-4

Formula

Model NO.

HIC-3

EINECS

10043-52-4

Shape

Card/Sheet

Drying Method

Indicator

Kind

Humidity Indicator Card

Sorbent

Blotting Paper

Desiccant

Hic Card

Character

Cobalt Free

Color

Brown to Azure

Card Size

105X37mm

Carton Size

550X230X270mm

OEM

Available

Inner Packing

Sealed Vacuum Bag+Tinplate Can

Outer Packing

Carton

Packing

5200PCS/Carton

Transport Package

4000PCS/200pouch/20can/1carton

Specification

5%-10%-60%

Trademark

Topcod/OEM

Origin

China, Foshan

HS Code

90258000

Production Capacity

50000 Pieces/ Day

Key features

Cobalt Free & Eco-Friendly: Environmentally safe indicator cards with no cobalt content, meeting REACH and RoHS standards.

High Accuracy Range: Indicates relative humidity levels from 5% to 95% with precise visual color changes.

Customizable Configurations: Available in 1 to 6 spots with customizable humidity levels and card sizes.

Military & JEDEC Compliant: Meets Mil-I-8835, Mil-Std-2073-1D, and JEDEC J-STD-033A standards.

Long Shelf Life: 2-year shelf life from manufacture date if the container remains unopened and undamaged.

Reversible & Irreversible Options: Offers both reversible cards for current humidity and irreversible cards for maximum exposure.

OEM/ODM Services: Full OEM and ODM customization available for packaging, branding, and specifications.

Fast Delivery: Fast delivery time available with peak and off-peak lead times within 15 workdays.

Company profile

Foshan Shunde Topcod Industry Co., Ltd.

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2016-08-16 CertifiedNearest Port: Shenzhen Port, Guangzhou Port, Shunde PortAverage Response Time: ≤3.81h CertifiedTerms of Payment: LC, T/T, PayPal, etc.

AI-Powered supplier vetting

SummaryFoshan Shunde Topcod Industry Co., Ltd. is identified as a Chinese manufacturer of desiccants, humidity indicator cards, aluminum foil bags, and related packaging materials. The supplier reports an ISO9001:2015 certificate, more than 10 production lines, 101 employees, a 11,000 m² manufacturing plant, and stated annual capacities of 9,000 tons of desiccant and 3,000 tons of aluminum foil bags. Its descriptions also reference professional technical staff, testing equipment, and compliance with several product standards. Export activity is documented, with 41%–50% of sales from exports and exporting beginning in 2016. Evidence supports production scale, certification, and international customer experience, but is insufficient to confirm financial strength, customized-production capability, or the scope and reliability of after-sales services.

Supplier typeThe supplier is explicitly classified as a manufacturer in China, while another record describes the company nature as a trading company. Its stated products and manufacturing plant support manufacturing activity, but the conflicting classification means the business profile is not completely consistent.

CertificationsThe supplier explicitly reports an ISO9001:2015 certificate. It also states that its products meet or passed MIL-D-346E, DIN55473, SGS, and RoHS-related requirements, although the slices do not provide independent verification or certificate details for each claim.

R&D capabilityThe supplier claims advanced production lines, specialized machinery for humidity indicator cards and moisture-proof bags, a professional technical team, four R&D engineers, and ongoing product and quality development. These details provide positive evidence of technical and development capability, although no specific proprietary innovations or R&D achievements are documented.

Production capacityProduction capability is supported by 101 employees, an 11,000 m² manufacturing plant, more than 10 production lines, and stated capacities of 9,000 tons of desiccant and 3,000 tons of aluminum foil bags annually. The supplier also reports mechanized production lines and testing equipment, indicating substantial manufacturing infrastructure.

Client casesThe supplier states that Honda, Panasonic, Sony, and other well-known companies cooperate with it, and that its products are sold worldwide with good feedback. These are supplier-reported customer references; the slices do not include order details, verification, or named case studies.